| 摘要 |
An integrated or built-in key-operated gun lock having a rotatable swivel arm. The lock is preferably positioned at the fore-end of the pump slide handle so that, when deployed in the locked position, the swivel arm interferes with the forward motion of the slide handle thereby preventing the shotgun trigger from being reset for firing the weapon. This also prevents the shotgun from being locked with an ammunition round chambered. The swivel arm is preferably located between the slide arm and the pump magazine. A stationary ring may be installed on the magazine tube or, depending upon the existing configuration of the shotgun, an existing ring such as the ring commonly used to brace the magazine tube to the gun barrel, may be employed to cooperate with the swivel arm. When the lock is deployed to prevent firing of the weapon, the swivel arm is rotated into a forward-facing direction so that it contacts the stationary ring as the slide arm is slid forward along the magazine tube, but before the slide arm reaches its fully forward position where it can reset the shotgun trigger. When the lock is unlocked, the swivel arm is rotated, for example about 90° so that it can no longer interfere with the full motion of the slide arm so that the trigger can be reset or engaged and the rifle can be fired.
|
